Tuesday, December 10, 2024 6:12 PM A strong cold front is sweeping east across the Eastern United States. Behind this cold front, modified Arctic air will send temperatures plummeting allowing for any lingering moisture to changeover to snow. Ahead of the cold front, it's quite warm for December. In fact, ingredients are in place for spring-like thunderstorms as the cold front clashes into the warmer, moist airmass.